Should you grade Thundurus EX #26?

Borderline

+$53.96

net at PSA 10, but the gem rate is 17.3% — profitable only if it gems

The ledger

Raw card$2.46
Regular fee−$79.99
Shipping, both ways−$15.00
Selling fees−$23.59
PSA 10 sale$175.00
Net at PSA 10+$53.96
Net if it grades PSA 9 instead$-80.07

17.3% of the 133 copies PSA has graded came back a 10. Pop gem rates are a ceiling — centering and surface on your copy decide.

Prices from real completed sales, updated daily. Population data from PSA's public population report.